/Engine/Source/Runtime/Engine/Public/Physics/SimpleSuspension.h
Given a sprung mass and a spring stiffness, compute the natural frequency of the spring
static void ComputeSpringNaturalFrequencyAndDampingRatio ( const float SprungMass, const float SpringStiffness, const float SpringDamping, float & OutNaturalFrequency, float & OutDampingRatio )